.tool-page{background:var(--bg);padding-bottom:70px}.tool-container{max-width:900px}.tool-intro{padding:34px 0 24px;background:#fff;border-bottom:1px solid var(--line)}.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:22px;color:#8791a1;font-size:12px}.breadcrumb a:hover{color:var(--brand)}.tool-intro h1{margin:0;font-size:clamp(31px,5vw,43px);line-height:1.2;letter-spacing:-1.7px}.tool-intro>div>p:last-child{margin:10px 0 0;color:var(--muted);font-size:15px}.calculator-wrap{padding-top:30px}.vat-calculator{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.mode-tabs{display:grid;grid-template-columns:1fr 1fr;padding:7px;background:#edf1f7;border-bottom:1px solid var(--line)}.mode-tabs button{height:52px;border:0;border-radius:14px;background:transparent;color:#697386;font-weight:700;cursor:pointer}.mode-tabs button[aria-selected=true]{background:#fff;color:var(--brand);box-shadow:0 3px 12px rgba(32,52,84,.09)}.mode-tabs button:focus-visible,.calculate-button:focus-visible,.reset-button:focus-visible,.copy-button:focus-visible,.rounding-options input:focus-visible+span{outline:3px solid rgba(38,94,232,.25);outline-offset:2px}.calculator-panel{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:30px;padding:32px}.input-row label,.rounding-field legend{display:block;margin-bottom:9px;font-size:14px;font-weight:800}.money-input{position:relative}.money-input input{width:100%;height:58px;padding:0 53px 0 16px;border:1px solid #d7deea;border-radius:13px;background:#fff;font-size:19px;font-weight:700;text-align:right;outline:none}.money-input input:focus{border-color:#8facfa;box-shadow:0 0 0 3px rgba(38,94,232,.09)}.money-input input[aria-invalid=true]{border-color:#e05b56}.money-input span{position:absolute;right:17px;top:50%;transform:translateY(-50%);color:#788397;font-size:14px}.field-help,.field-error{margin:7px 2px 0;font-size:12px}.field-help{color:#7b8698}.field-error{color:#c23c36}.rounding-field{margin:25px 0 0;padding:0;border:0}.rounding-options{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.rounding-options label{margin:0;cursor:pointer}.rounding-options input{position:absolute;opacity:0;pointer-events:none}.rounding-options span{display:grid;height:43px;place-items:center;border:1px solid #dfe4ec;border-radius:11px;color:#657084;font-size:13px}.rounding-options input:checked+span{border-color:var(--brand);background:var(--soft);color:var(--brand);font-weight:800}.form-actions{display:grid;grid-template-columns:1fr auto;gap:9px;margin-top:25px}.calculate-button,.reset-button,.copy-button{border-radius:11px;font-weight:700;cursor:pointer}.calculate-button{height:50px;border:0;background:var(--brand);color:#fff}.calculate-button:hover{background:var(--brand2)}.reset-button{height:50px;padding:0 18px;border:1px solid var(--line);background:#fff;color:#687386}.result-box{padding:23px;border-radius:16px;background:#f5f8ff;border:1px solid #dfe8ff}.result-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.result-heading h3{margin:0;font-size:16px}.copy-button{padding:7px 10px;border:1px solid #c8d7fd;background:#fff;color:var(--brand);font-size:11px}.copy-button:disabled{cursor:not-allowed;color:#9aa4b3;border-color:#dfe4ec;background:#f6f7f9}.result-box dl{margin:16px 0 0}.result-box dl>div{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px solid #dfe7f5}.result-box dt{color:#647086;font-size:13px}.result-box dd{margin:0;font-size:17px;font-weight:800;font-variant-numeric:tabular-nums}.result-box .result-total{margin-top:4px;padding:15px 0 8px;border:0}.result-total dt{color:var(--text);font-weight:800}.result-total dd{color:var(--brand);font-size:25px;letter-spacing:-.6px}.result-box>p{margin:10px 0 0;color:#7a8699;font-size:11px;text-align:right}.tool-content{margin-top:28px;padding:12px 34px 28px;background:#fff;border:1px solid var(--line);border-radius:18px}.tool-content>section{padding:25px 0;border-bottom:1px solid #edf0f5}.tool-content>section:last-child{border-bottom:0}.tool-content h2{margin:0 0 11px;font-size:21px;letter-spacing:-.5px}.tool-content p{margin:0;color:#586477;font-size:14px;line-height:1.85}.tool-content p+p{margin-top:9px}.formula-list{margin:12px 0;padding:16px 18px;border-radius:12px;background:var(--bg)}.formula-list p{color:#3e4b60}.notice{margin-top:16px!important;padding:14px 16px;border-left:3px solid #91acf5;background:#f4f7ff}.faq-section details{border-top:1px solid #e8ecf2}.faq-section details:last-child{border-bottom:1px solid #e8ecf2}.faq-section summary{padding:16px 30px 16px 0;font-size:14px;font-weight:700;cursor:pointer;position:relative;list-style:none}.faq-section summary::-webkit-details-marker{display:none}.faq-section summary:after{content:'+';position:absolute;right:5px;color:var(--brand);font-size:20px;font-weight:400}.faq-section details[open] summary:after{content:'−'}.faq-section details p{padding:0 25px 16px 0}.related-tools{margin-top:28px}.related-tools h2{font-size:20px;margin:0 0 14px}.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.related-grid>a{display:grid;grid-template-columns:42px minmax(0,1fr) 16px;align-items:center;gap:11px;padding:15px;border:1px solid var(--line);border-radius:14px;background:#fff}.related-grid .tool-icon{width:42px;height:42px;border-radius:11px}.related-grid strong,.related-grid small{display:block}.related-grid strong{font-size:14px}.related-grid small{margin-top:2px;color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.related-empty{margin:0;padding:20px;border:1px dashed #cdd6e3;border-radius:14px;background:#fff;color:var(--muted);font-size:13px}.tool-page .ad-slot{min-height:100px}
@media(max-width:720px){.calculator-panel{grid-template-columns:1fr;gap:24px}.result-box{min-height:250px}}
@media(max-width:640px){.tool-page{padding-bottom:48px}.tool-intro{padding:24px 0 20px}.breadcrumb{margin-bottom:17px}.tool-intro h1{font-size:30px}.tool-intro>div>p:last-child{font-size:13px}.calculator-wrap{padding-top:20px}.vat-calculator{border-radius:16px}.mode-tabs button{height:48px;font-size:13px}.calculator-panel{padding:21px 17px}.money-input input{height:56px}.form-actions{grid-template-columns:1fr 82px}.result-box{padding:19px;min-height:0}.result-total dd{font-size:23px}.tool-content{padding:5px 20px 20px}.tool-content>section{padding:22px 0}.tool-content h2{font-size:19px}.related-grid{grid-template-columns:1fr}}